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Commitments and Contingencies - Additional Information - Odebrecht (Detail) - USD ($)
$ in Thousands
1 Months Ended 12 Months Ended
Oct. 31, 2014
Dec. 31, 2016
Dec. 31, 2015
Loss Contingencies [Line Items]      
Percentage of interest in joint venture   100.00%  
Payments made towards commitments   $ 25,187 $ 34,027
Odebrecht Oil and Gas Sa [Member]      
Loss Contingencies [Line Items]      
Percentage of interest in joint venture 50.00%    
Operating lease arrangement period, lessor (in years)   12 years  
Expected cost of project $ 1,000,000    
Prepaid Expense   $ 700,600  
Payments due in 2017   302,300  
Secured short-term loan refinanced with long-term debt facility $ 537,000    
Newbuildings [Member] | Odebrecht Oil and Gas Sa [Member]      
Loss Contingencies [Line Items]      
Unused borrowing capacity   266,700  
Newbuildings [Member] | Odebrecht Oil and Gas Sa [Member] | Maximum [Member]      
Loss Contingencies [Line Items]      
Debt instrument, face amount   $ 804,000